Stuff pump



A. ALDRICH STUFF PUMP Filed April 24 1924 5 Smets-Sheet l Jf/Ofozo iff-cya 90% m @74%4 (JCI/074@ l L I l 5 Sheets-Sheet 2 STUFF PUMP A. ALDRICH Filed April 24 1924 Dec. 16, 1930.

Dec. 16, 1930.

' A. All mucH STUFF PUMP Filed April 24. 1924 51 sheets-sheet 5 A. ALDRICH Dec. 16, 1930.

STUFF PUMP Filed April 24. 1924 5 Sheets-Sheet 4 A. ALDRICH STUFF PUMP Dec. 16, 1930.

Filed Ap`iil 24, 1924 5 Sheets-Sheet 5 Uit/Z666 Patented nee. 1e, 193e PATENT OFFICE ALONZO ALDRIGH, OF BELOIT, WISCONSIN STUFF PUMP Application filed Apr124,

My invention relates tostuff pumps, that .is to say, pumps for pumping what is known in the paper making` art as stuii', namely a watery mixture containing a certain amount of paper material, more than is usedfor making the paper, the stuff7 being diluted before being fedo-r at the time' it is fed to the paper making machine. v

One of the objects of the invention is to provide a simple, lpractical and advantageous construction of stuff pump.

Another object of the invention is to provide a stuff pump which will be very compact and occupy a small amountof space.

Other objects of the invention are to provide advantageous features of construction in the pump, as will be more especially pointed out hereafter.

ln the vaccompanying` drawings Fig. 1 is a side elevation of a stud pump embodying my invention;

Fig. 2 is an end elevation of the same;

Figs. 8, 4 and 5, are views of details of con struction, Fig. 3 being taken on line 3 8 in Fig. 1, and Fig. 4 being taken on line 4 4 in Fig. 5;

Figs. 6 and 7 are views similar to Figs 1 and 2, respectively, of a modified form of machine; and

Figs. 8 and 9 are similar views of a still further modification.

Referring to the drawings. I show a stuft` pump having a base member 1 supporting the pump mechanism. A plurality, as for example three, of cylinders 2, 2a and 2b, are mounted on this base l, and arranged side by side, said cylinders being horizontally disposed. Said cylinders 2, 2a and 2b are provided with reciprocating pistons, 8, 3a and 879, `connected with connecting rods 4 4, which connecting rods 4 4 are driven by cranks spaced 120 degrees `apart. on a rotary shaft 5. l

Below the cylinders 2, 2a and 2b are casings 7, 7a and 7b,'respectively, and these casings form chambers for the stuff and are connected with stuff inlets 8 8 by a duct or passage formed by the end portion 9 of the base `1. The casings 7, 7a and 7b are conveniently cast integral with the respective cyl,

1924. Serial No. 708,615.

inders 2, 2a and 2b, and are open at their upper ends so as to communicate with said cylinders 2, 2a and 2?), permitting the stuff to enter either or both of the inlets 8 8, and iiow into the stuff chambers formed by casings 7, 70a and 7 Z), and thence int-o the cylinders. rlhe flow of the stuff, however, is controlled by ballvalves 10-10 seated on valve seats 11-11 at the base of the several stuff chambers 7, 7a and 7h, said ball valves being guided in their vertical movement by guide ribs or vanes 12 12. For permitting access to the interior or stuff chambers 7 7a and 7 b they same are provided with removable doors 14-14 held in place by handles 15 15 on threaded rods 16 16.

Above the cylinders 2, 2a and 2?) are casings 17, 17a and 176, forming stuff outlet chambers, and these are united by pipes 18 and 18a into a single discharge pipe 19, through which the stuff material is discharged. These stuff outlet chambers 17, 17a and 17?; are preferably cast together and are in communication with the respective cylinders, and are provided with ball valves 20 20 controlled by guide vanesor ribs 21 21, and arranged to control the outflow or escape of stulf from the several cylinders with which they are respectively in communication. These stuff outlet chambers are also preferyably provided with side doors 22-22 held in position by handles 28 23 on threaded rods 24-24, allowing access to the interior of said chambers for various purposes. The

pistons 3, 3a, and 3b work in stufling boxes 2.5 25 having packing rings 26 26 controlled by adjustable members 27 27, as best shown in Fig. 5. Said piston rods are further supported and -guided by guides 29-29 traveling in guideways 30 30. The guides D Vbers 80a and 305.

` Aably have their inner en. ls recessed to form chambers for oil 30d. Y

Thus it will be seen that in operation the reciprocating pistons 8 3 will drawstutf trom the stuit' feeding or inlet chambers 7a, 7b and 7c, into the several cylinders, 2,20 and 2?), this inlet or material into the cylin-` ders beingbrcnght about bythe suction oi the out strokes of the pistons and being permitted by the slight rising of the ball valves lO-l0. By the in strolreso't the pistons, however, the stuff is crowded so as to depress ball valves Yl() and close the inlet orifices and also so vas to slightly lraise ball valves 2O in stud. outlet chambers l?, 17a and 176, the stuff owinginto and throngh'these chambers and intoand ont oi' the discharge orifice 19. ln this way the three cylinders will produce a constant pumping action, causing a continuous discharge of stutl material through the outlet 1,9 from which it can be taken and discharged in to any desired place. lt will be seen that the machinerie' especially advantageous, the cylinders being horizon- Ytally arranged and the stuft' inletand outlet Referring to Figs. 6 and 7,1 show aV modified form of machine having two of the cylterial, and a thirdV cylinder adapted for use with another kind of material. To this end a partition 35 .is inserted/in theinlet 8 so that two ot the cylinders receive stuiiE from the right Vhand end of inlet 8, (Fig. 7), and the otherv cylinder receives stuii from the left hand end ot' said inlet. f

ln the machine shown in Figs. 8 and 9, all ,three cylinders are arranged for use with ditu ferent kinds of material, the inlet 8 being provided with two partitions 36-36 so that the outsidecylinders will receive different kinds of stnli from the opposite ends of said Vinlet 8, andthe middle cylinder will receive a third kind oit' stuit' from another inlet 37 Yresiding material 'to the cylinder portion of inlet 8 between' partitions 36-36.

any desired way orr arate Vinterconnected inlets to some or" said cylinders and separate interconnected outlets from the cylinders selectively permitting the operation of some of the cylinders on one kind of material and another cylinder or cylinders on a different kind ofmaterial.

horizontally disposed stud vpump cylinders, of an inlet for said cylinders havingopenings ."2..-rl`he combination with a plurality of f to the different cylinders'and'partition means in sa-id'inlet for snpplyingone Vor more of said cylinders from a part of said inlet and another cylinder or cylinders from another aart of the inlet. n Y 3. The combination with a plurality of horizontally disposed stuff pump cylinders, of an inlet for said cylinders having openings to the different cylinders and partition meansinsaid inlet for supplying one or more of said cylinders from a part of said inlet and another cylinder or cylinders from another part of the-inlet, and a separate inlet for another cylinder. Y f

ln witness whereol hereunto subscribe my naine this 8th day of AprihA. D., 1924.

. ALoNzo Annalen.

indersadapted for use with one kind of ma- Y 

